Optimal Tradeoff between MPP and Stability of a PV-Based Pumping System

Wahid Souhail, Sameer Alsharif, Irfan Ahmed and Hedi Khammari
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Wahid Souhail: Laboratory of Automation, Electrical System and Environment (LAESE), National Engineering School of Monastir, Monastir 5019, Tunisia
Sameer Alsharif: Department of Computer Engineering, College of Computers and Information Technology, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Irfan Ahmed: Department of Electrical Engineering, Higher Colleges of Technology, Ruwais Campus, Abu Dhabi 12389, United Arab Emirates
Hedi Khammari: Laboratory of Automation, Electrical System and Environment (LAESE), National Engineering School of Monastir, Monastir 5019, Tunisia

Energies, 2022, vol. 15, issue 3, 1-19

Abstract: This paper presents a novel algorithm to pick PV-based pumping system operating points that simultaneously achieve maximum delivered power and optimized stability. We present an in-depth analysis of operating point dynamics and shape the PV output current and voltage parameter plans. Accordingly, we draw the power bifurcation diagram with all possible operating points. Our proposed algorithm picks the power operating point midway between two consecutive stable points and far enough from the stability boundary to assure system safety. We validated our methodology successfully by numerical simulation based on speculative evidence using MATCON/MATLAB/SimPowerSystems blocks. In addition, we compared the proposed algorithm with P&O MPPT algorithm, and the results verified the reliability of our proposed algorithm to deliver maximum stable power.

Keywords: maximum power operating point; stability; bifurcation; photovoltaic; water pumping system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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